JP2022030751A - Bactericide gasifier - Google Patents

Abstract

To provide a bactericide gasifier that can generate a large amount of gas of a bactericide to be used in sterilizing a packaging material in an aseptic filling machine, and heats even a tip of a nozzle that sprays the gasified bactericide, thereby preventing the liquefaction of the gas of the bactericide sprayed from the nozzle tip.SOLUTION: A bactericide gasifier has: a bactericide supplier that supplies a bactericide; an evaporation tube that comes into contact with the supplied bactericide to gasify the bactericide; a nozzle that sprays the gasified bactericide to the tip of the evaporation tube; and a heater that heats the evaporation tube and the nozzle with a heat gas.SELECTED DRAWING: Figure 1

Description

The present invention relates to a fungicide gasifier that produces a fungicide gas, which is used to sterilize packaging materials in a sterile filling machine.

Foods and beverages are filled and distributed in various containers by a sterile filling machine such as portion milk, beverages in brick-type liquid paper containers, soups in pouches, beverages in cups, and beverages in PET bottles. An aseptic filling machine is a device that fills a sterilized container with sterilized contents in an aseptic atmosphere and seals it. Products produced by aseptic filling machines can be distributed and stored at room temperature, so they consume less energy than refrigerated and frozen products and have a good taste, so they are on the increase.

In the aseptic filling machine, the packaging material used as the container is various as described above, and the sterilization method differs depending on the packaging material. There is also a method of irradiating with ultraviolet rays or electron beams, but the method of sterilizing the surface of the packaging material with a sterilizing agent is the mainstream. Furthermore, when the packaging material is sterilized using a disinfectant, potion milk or a brick paper pattern container is sterilized by immersing the packaging material in the disinfectant, but there is also a method of spraying the disinfectant. Packaging materials that are flat and do not interfere with the relatively high drying temperature are sterilized by immersing them in a disinfectant. Molded containers such as cups and bottles and packaging materials such as films that stretch when dried at high temperatures are sterilized by spraying with a disinfectant.

Large droplets of disinfectant to be sprayed may drip on the sides of cups and bottles. The smaller the droplet of the bactericidal agent to be sprayed, the more evenly it is applied to the surface of the packaging material, and the higher the bactericidal effect. Therefore, a method of atomizing droplets of a fungicide has been proposed (Patent Document 1).

The smaller the droplets of the disinfectant adhering to the surface of the packaging material and the tighter the surface of the packaging material is covered with the droplets of the disinfectant, the higher the bactericidal effect. Therefore, instead of spraying droplets of the disinfectant, a method has been proposed in which the disinfectant is gasified and the gasified disinfectant is sprayed on the surface of the packaging material to condense the disinfectant on the surface of the packaging material. (Patent Document 2). Here, the gasification of the fungicide is performed by dropping the fungicide onto a heated heating element.

Further, a method has been proposed in which a large amount of gasification of the fungicide is efficiently performed by spraying the fungicide into the heated pipe (Patent Document 3). Further, a method of providing a heat storage body in a heated tube has also been proposed (Patent Document 4).

Japanese Unexamined Patent Publication No. 60-220067 Japanese Unexamined Patent Publication No. 63-1163 Japanese Unexamined Patent Publication No. 3-224469 Japanese Unexamined Patent Publication No. 10-218134

Gasified hydrogen peroxide solution is often used to sterilize packaging materials in aseptic filling machines. The method of gasifying the hydrogen peroxide solution is to bring the hydrogen peroxide solution into contact with a heating element. As the gasifier of the hydrogen peroxide solution described in Patent Document 3, a disinfectant supply unit similar to a two-fluid spray is used, and the disinfectant sprayed from the spray comes into contact with the surface of the heated vaporization tube. It is gasified by letting it. The vaporization tube is heated by a heater provided on its outer surface. Metals such as aluminum and stainless steel are used for the vaporization tube, and consideration is given to the rapid transfer of heating by the heater.

However, as the speed of the aseptic filling machine increases, the amount of sterilizing agent used increases, and when the amount of sterilizing agent sprayed increases, the amount of heat consumed on the inner surface of the vaporizing tube increases, the amount of heat applied by the heater becomes insufficient, and the surface of the vaporizing tube becomes insufficient. The temperature will drop. Therefore, the number of vaporization tubes is increasing. Increasing the number of vaporization tubes has led to an excessive initial investment.

The tip of the vaporization tube has a nozzle shape in order to spray the gasified disinfectant onto the packaging material. In order for the tip of the vaporization tube to have a nozzle shape, the diameter of the tip of the vaporization tube must be smaller than the diameter of the vaporization tube body. However, it is difficult to heat the nozzle portion having a small diameter with a heater. The nozzle part of the vaporization tube currently used is not covered with a heater, and the bactericide gasified at the nozzle part is cooled and liquefied, and the bactericidal agent sprayed from the nozzle is a bactericidal agent liquefied with gas. Mist is supposed to occupy the majority. In addition, the gas of the disinfectant is cooled at the nozzle part, and further blown out from the tip of the nozzle to be rapidly cooled to liquefy, and the liquefied disinfectant adheres to the tip of the nozzle and drops as droplets. This causes inconvenience due to the difficulty of covering the tip with a heater. ..

Since the nozzle part at the tip of the vaporization tube cannot be heated, the droplets of the disinfectant sprayed on the packaging material become large, the area of the disinfectant covering the surface of the packaging material becomes small, and the disinfectant effect of the disinfectant is reduced. There is. The originally gasified disinfectant is sprayed onto the packaging material, cooled on the surface of the packaging material, small droplets cover the surface of the packaging material, and most of the surface of the packaging material is covered with the disinfectant to improve the bactericidal effect. It is expected to let you.

The present invention has been made to solve the above problems, in which a large amount of disinfectant is gasified, heated to the tip of a nozzle to which the gasified disinfectant is sprayed, and the gas of the disinfectant sprayed from the tip of the nozzle. It is an object of the present invention to provide a gasifier of a disinfectant capable of preventing liquefaction.

The bactericidal agent gasification device according to the present invention includes a bactericidal agent supply device that supplies the bactericidal agent, a vaporization tube that gasifies the bactericidal agent by contacting the supplied bactericidal agent, and the tip of the vaporization tube. It is characterized by comprising a nozzle for spraying a gasified bactericidal agent, and a heating device for heating the vaporization tube and the nozzle with a heating gas.

Further, the sterilizing agent gasifier according to the present invention is abbreviated as the vaporizing pipe and the nozzle that cover the outer surface of the vaporizing pipe and the nozzle while maintaining a certain interval with respect to the outer surface of the vaporizing pipe and the nozzle. It is preferable to have a tube having a similar shape.

Further, it is preferable that the gasifying device for the disinfectant according to the present invention is configured such that the heated gas is any one of heated air, heated steam, heated superheated steam, or a combination of two or more. Is.

Further, it is preferable that the disinfectant gasification device according to the present invention is configured so that the disinfectant and the heated gas are simultaneously sprayed.

Further, in the disinfectant gasification device according to the present invention, it is preferable that the disinfectant supply device includes a two-fluid spray.

According to the present invention, in a sterile filling machine for filling a packaging material such as a bottle or a cup made of paper or plastic as a material such as a beverage or a dairy product, a large amount of gas of a sterilizing agent used for sterilizing the packaging material is used. It is an object of the present invention to provide a disinfectant gasifier capable of preventing liquefaction of the disinfectant gas sprayed from the nozzle tip by heating to the tip of a nozzle that can be generated and sprays the gasified disinfectant.

It is a side view which shows Embodiment 1 of the gasification apparatus of the disinfectant which concerns on this invention. It is a side view which shows Embodiment 2 of the gasification apparatus of the disinfectant which concerns on this invention. It is a side view which shows Embodiment 3 of the gasification apparatus of the disinfectant which concerns on this invention. It is a side view which shows the gasification apparatus of the fungicide which concerns on the prior art. The step of spraying the disinfectant gas generated by the disinfectant gasifier according to the present invention onto the preform is shown. The process of blowing the gas generated by the gasifier of the disinfectant according to the present invention onto a bottle is shown. The process of spraying the gas generated by the gasifier of the disinfectant according to the present invention onto a paper container is shown.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 shows the first embodiment of the disinfectant gasification device according to the present invention. The spray device 2 provided in the disinfectant supply device 1 is a two-fluid spray. A disinfectant is supplied to the disinfectant supply port 3 from a disinfectant tank (not shown), compressed air is supplied to the compressed air supply port 4, and the disinfectant is sprayed into the vaporization unit 7 from the spray nozzle 6 via the extension pipe 5. Will be done. The extension pipe 5 is provided so that the heat of the vaporizing unit 7 is conducted to the spraying device 2 through the upper surface of the vaporizing unit 7 that closes the upper part of the vaporizing unit 7 so that the temperature of the main body of the spraying device 2 does not rise. Has been done. In the figure, the flow of the disinfectant is indicated by the dashed arrow.

The vaporization unit 7 is provided with a vaporization pipe 8 and a nozzle 9 on the inner surface thereof, and keeps a certain distance from the vaporization pipe 8 and the nozzle 9 on the outer surface thereof to cover the vaporization pipe 8 and the outer surface of the nozzle 9 with the vaporization pipe 8 and the nozzle 9. A tube body 11 having a substantially similar shape is provided, and a heated gas heated by the heating device 10 is flowed between the vaporization tube 8 and the nozzle 9 and the tube body 11.

The vaporization tube 8 and the nozzle 9 are heated by flowing the heated gas heated by the heating device 10 between the vaporization tube 8 and the nozzle 9 and the tube body 11. In the figure, the flow of the heated gas is indicated by a solid arrow. The disinfectant is supplied by the disinfectant supply device 1, and the supplied disinfectant is sprayed into the inside of the vaporization tube 8 heated by the spray device 2. The disinfectant sprayed inside the heated vaporization tube 8 is heated by coming into contact with the inner surface of the vaporization tube 8 and instantly gasified.

The outer surface of the tube 11 is covered with a heat insulating material for heat insulation.

A heater may be provided on the outer surface of the tube 11 to heat the outer surface of the tube 11. By heating the outer surface of the tube body 11, it is possible to prevent the temperature of the heated gas flowing through the tube body 11 from falling and efficiently gasify the bactericide. It is preferable that the temperature for heating the tube 11 is higher than the temperature of the heated gas flowing through the tube 11. The portion that heats the tubular body 11 may be only the portion of the tubular body 11 that covers the vaporization tube 8.

The disinfectant is supplied to the spray device 2 provided in the disinfectant supply device 1 from the disinfectant supply port 3, and compressed air is supplied from the compressed air supply port 4. The spray device 2 is a two-fluid spray, and the disinfectant becomes mist from the spray nozzle 6 and is sprayed on the inner surface of the vaporization pipe 8. The sprayed disinfectant contacts the inner surface of the heated vaporization tube 8 and gasifies. The generated disinfectant gas is discharged from the nozzle 9 by the pressure of the compressed air.

The fungicide contains at least hydrogen peroxide. The content thereof is appropriately in the range of 0.5% by mass to 65% by mass. If it is less than 0.5% by mass, the bactericidal activity may be insufficient, and if it exceeds 65% by mass, it becomes difficult to handle for safety. Further, more preferable is 0.5% by mass to 40% by mass, and when it is 40% by mass or less, it is easier to handle, and since the concentration is low, the residual amount of hydrogen peroxide in the packaging material after sterilization is reduced. can.

The fungicide also contains a stabilizer to prevent the decomposition of hydrogen peroxide. As the stabilizer for the bactericide, it is preferable to use sodium pyrophosphate or orthophosphoric acid, which is used as a designated additive for food by the Minister of Health, Labor and Welfare to sterilize packaging materials for food. However, a phosphorus-containing inorganic compound such as sodium hydrogenpyrophosphate, a phosphonic acid chelating agent such as aminotrimethylphosphonic acid and an alkylidendiphosphonate may be used. The stabilizer content is usually 40 ppm or less.

The disinfectant contains water, but is one or two of alcohols such as methyl alcohol, ethyl alcohol, isopropyl alcohol, normal propyl alcohol and butyl alcohol, ketones such as acetone, methyl ethyl ketone and acetyl acetone, and glycol ether. It may contain more than seeds.

Further, the bactericidal agent may contain additives such as peracetic acid, acetic acid, chlorine compounds, compounds having a bactericidal effect such as ozone, cationic surfactants, and nonionic surfactants.

The vaporization tube 8 is preferably cylindrical because the disinfectant sprayed from the spray nozzle 6 is sprayed in a circular shape. However, it may be a polygonal cylinder. The diameter of the cylinder needs to be sufficiently large so that the internal pressure of the vaporizing portion 7 does not increase due to the compressed air used for spraying the disinfectant. However, the diameter must be such that the sprayed fungicide mist can come into contact with the inner surface of the vaporization tube 8. In addition, the length of the cylinder is also designed to meet this requirement.

As the operating conditions of the spraying device 2, for example, the pressure of the compressed air is adjusted in the range of 0.05 MPa to 0.6 MPa. Further, the disinfectant may be dropped by gravity or may be provided with a pump to apply pressure, and the supply amount of the disinfectant can be freely set, for example, 1 g / min. ~ 100 g / min. Supply within the range of.

The disinfectant gasified by contacting the inner surface of the vaporization pipe 8 is discharged from the nozzle 9 by the pressure of the compressed air. It is also possible to make the nozzle 9 face the object to be sterilized, which is a packaging material, and directly blow the gas of the sterilizing agent discharged to the object to be sterilized. The bactericidal gas discharged from the nozzle 9 and the heated air supplied from the heated air supply device may be mixed and sprayed in the conduit.

The diameter of the nozzle 9 serving as the gas outlet for the disinfectant can be arbitrarily set, and can be 2 mmφ to 200 mmφ. By reducing the diameter, the spraying pressure of the generated disinfectant gas can be increased. By adjusting the spraying pressure, the spraying pressure of the gas of the disinfectant or the mist generated by condensation or a mixture thereof on the surface of the object to be sterilized can be adjusted. For example, if the object to be sterilized is a deep cup, the spray pressure can be increased, and if the container is shallow, the spray pressure can be decreased.

Metals such as iron, stainless steel, copper alloy, aluminum, aluminum alloy, zinc, and tungsten are used for the vaporization tube 8 and the nozzle 9. The inner surfaces of the vaporization tube 8 and the nozzle 9 may be plated with a metal such as chromium or nickel, which is different from the metal used for the vaporization tube 8. Further, the inner surfaces of the vaporization tube 8 and the nozzle 9 may be coated with polytetrafluoroethylene or perfluoroalkoxy fluororesin, or may be plated with polytetrafluoroethylene or perfluoroalkoxy fluororesin-impregnated chromium.

The vaporization tube 8 and the nozzle 9 are heated by flowing the heated gas heated by the heating device 10 between the vaporization tube 8 and the nozzle 9 and the tube body 11. The outer surface of the vaporization pipe 8 and the nozzle 9 and the inner surface of the pipe body 11 maintain a constant distance. The fixed interval is a distance through which the heated gas can flow, and 5 mm to 200 mm is appropriate. If it is less than 5 mm, the amount of heat applied to the vaporization tube 8 by the heated gas is insufficient. Further, if it exceeds 200 mm, the flow rate of the heated gas becomes excessive and energy is wasted. This interval varies depending on the size of the vaporization tube 8. When the vaporization tube 8 is a cylinder, 1/20 to 1/5 of the inner diameter of the vaporization tube 8 is appropriate. If it is less than 1/20, the amount of heat applied to the vaporization tube 8 is insufficient. If it exceeds 1/5, the flow rate of the heated gas becomes excessive and energy is wasted.

Although the vaporization tube 8 and the nozzle 9 and the tube body 11 maintain a constant distance, the distance may not be the same for the entire outer surface area of the vaporization tube 8 and the nozzle 9. For example, the distance between the pipe body 11 covering the nozzle 9 and the nozzle 9 may be smaller than the distance between the pipe body 11 covering the outer surface of the vaporization pipe 8 and the vaporization pipe 8. Further, the interval may be gradually reduced in the direction toward the tip of the nozzle 9. By doing so, the flow velocity of the heated gas can be adjusted. By reducing the distance between the tips of the tube 11, the pressure of the heated gas on the outer surface of the vaporization tube 8 can be increased, and the heating efficiency of the vaporization tube 8 can be increased. Furthermore, the gas discharge flow rate of the fungicide and the outflow rate of the heated gas can be adjusted.

FIG. 4 shows a gasification device for a disinfectant according to the prior art. The configuration of the disinfectant supply device 1, the spray device 2, the extension pipe 5, the spray nozzle 6, and the vaporization pipe 8 is the same as that of the first embodiment of the present invention shown in FIG. It is the heater 12 that covers the outer surface of the vaporization pipe 8 that heats the vaporization pipe 8. Usually, a plurality of band heaters are provided so as to be wound around the cylindrical outer surface of the vaporization tube 8. Unless a plurality of band heaters are used, the entire outer surface of the vaporization tube 8 cannot be covered with the heater. There is a problem that the non-uniform heating of individual band heaters due to the use of a plurality of band heaters may cause a portion where the gasification efficiency of the disinfectant is low.

Further, since the outer surface of the nozzle 9 cannot be covered with a heater, the disinfectant gasified inside the vaporization tube 8 may be cooled by the nozzle 9 and liquefied. The liquefied disinfectant does not contribute to sterilization and has a problem of reducing the bactericidal activity.

As shown in FIG. 1, in the first embodiment of the present invention, since the outer surface of the vaporization tube 8 is heated by the heated gas, it can be uniformly heated, and the outer surface of the nozzle 9 is also heated by the heated gas. Therefore, the bactericide can be maintained in a gasified state up to the tip of the nozzle 9 and discharged.

The heated gas obtained by the heating device 10 is any one or a combination of two or more of heated air, heated steam, and heated superheated steam. In addition to these, the heated gas may be one obtained by heating nitrogen, argon, carbon dioxide or the like. The heated gas is flowed from the upper part of the tube 11 between the vaporization tube 8 and the nozzle 9 and the tube 11. The heated gas to be flowed must be made to flow uniformly between the tube body 11, the vaporization tube 8, and the nozzle 9.

When supplying the heated gas from the upper part of the tubular body 11, it is preferable to provide a circular supply port around the extension pipe 5 and simultaneously supply the heated gas from this supply port to the extension pipe 5 over the entire circumference. The supplied heated gas flows from the periphery of the extension pipe 5 to the upper part of the pipe body 11 and from the side surface portion of the pipe body 11 to the outer surface of the nozzle 9, and is discharged from between the nozzle 9 and the pipe body 11. A gasified disinfectant is discharged from the nozzle 9, and a heated gas is discharged so as to surround the gasified disinfectant at the same time as the gasified disinfectant.

The gasified disinfectant and the heated gas are simultaneously sprayed onto the object to be sterilized so that the heated gas surrounds the gasified disinfectant. By simultaneously spraying the gasified bactericide and the heated gas onto the object to be sterilized, it is possible to prevent the liquefaction of the bactericide gas due to the temperature decrease of the gasified bactericide after being discharged from the nozzle 9. As a result, the sprayed disinfectant gas liquefies when it reaches the surface of the object to be sterilized, so that the droplets of the disinfectant on the surface of the object to be sterilized are small and the bactericidal effect is improved. The heated gas has two roles of gasifying the bactericidal agent, preventing the temperature of the discharged bactericidal agent from falling, and improving the bactericidal effect.

The heated air is obtained by heating the compressed air produced by the compressor or the air delivered by the blower with a heating device such as a heater or a burner. The temperature of the obtained heated air is preferably 140 ° C. to 500 ° C. Below 140 ° C, the ability to gasify the disinfectant is insufficient, and above 500 ° C, the heat resistance of the device must be increased. The air before heating is preferably sterilized air that has passed through a sterilization filter. This is because the bacteria and the like in the heated air are sterilized by being heated, but the bacteria that are not sterilized may remain. A device for supplying air, a sterilization filter, and a heating device for heating the air are provided as the heating device 10.

The heated steam is generated by a heated steam supply device that heats water with electricity or fuel. The water used may be purified through a reverse osmosis membrane. A boiler compound, a condensate treatment agent, etc. are used for a can body that uses water as steam, but a food additive grade is used. Further, it is preferable that the can body and the transport pipe are made of stainless steel. It may also be passed through a filter, activated carbon or ultrafiltration membrane to remove foreign matter, ions, chemicals, etc. in the heated steam. Further, the heated steam supply device is preferably a reboiler that uses heated steam as a heat source and exchanges heat with water that has passed through a reverse osmosis membrane to generate heated steam. The temperature of the heated steam is preferably 140 ° C to 170 ° C. Below 140 ° C, the ability to gasify the fungicide is insufficient, and above 170 ° C, it does not become saturated steam. Compared to heated air, the amount of heat is large because water is contained at the same temperature. A device for supplying water and a heated steam supply device are provided as the heating device 10.

The heated superheated steam is steam heated by heating water to obtain steam. The superheated steam is steam generated from water supplied to the superheated steam generator and having a pressure of 0.1 MPa to 0.3 MPa, which is higher than the atmospheric pressure of 200 ° C. to 500 ° C. The superheated steam generator heats the water passage pipe with a heater or an induction coil to generate superheated steam. Superheated steam is difficult to adjust below 200 ° C, and the heat resistance of the appliance must be increased at temperatures above 500 ° C. Compared to heated air, it contains water and therefore has a large amount of heat. Further, when the same amount of water is contained as compared with the heated steam, the temperature is high and the amount of heat is large. A device for supplying water and a superheated steam generator are provided as the heating device 10.

(Embodiment 2)
FIG. 2 shows a gasification device for a disinfectant according to a second embodiment of the present invention. The disinfectant supply device 1, the spray device 2, the extension pipe 5, the spray nozzle 6, and the vaporization pipe 8 are the same as those in the first embodiment. In the first embodiment, the tip of the nozzle 9 and the tip of the tubular body 11 covering the nozzle 9 face in the vertical direction, but in the second embodiment, the tip of the nozzle 9 has a constant acute angle with respect to the vertical direction. There is.

In the first embodiment, the disinfectant gas and the heated gas are discharged in the vertical direction. However, in the second embodiment, the gas of the bactericide is discharged in the vertical direction, but the heated gas is discharged in a constant acute angle direction with respect to the vertical direction. When the heated gas flows out in a certain acute angle direction with respect to the vertical direction, the disinfectant gas discharged from the nozzle 9 and the heated gas are mixed immediately after the discharge and sprayed onto the object to be sterilized.

By mixing the disinfectant gas and the heated gas immediately after discharge, the temperature of the gasified disinfectant rises, and the gas state is maintained until the disinfectant gas reaches the surface of the object to be sterilized and liquefies. be able to. As a result, the droplets of the bactericidal agent liquefied on the surface of the object to be sterilized are small, and the bactericidal effect is improved.

(Embodiment 3)
FIG. 3 shows a gasification device for the disinfectant according to the third embodiment of the present invention. The disinfectant supply device 1, the spray device 2, the extension pipe 5, the spray nozzle 6, the vaporization pipe 8, and the nozzle 9 are the same as those in the first embodiment. In the first and second embodiments, the tip of the tube 11 that covers the nozzle 9 is open, but in the third embodiment, it is closed. In this case, the heated gas does not flow out in the discharge direction of the disinfectant gas, but flows out in another direction. The outflowing heated gas may be returned to the heating device 10 and reused.

In Embodiment 3, the heated gas is used only to gasify the disinfectant. The heated gas that heats the vaporization tube 8 and the nozzle 9 is flowed between the vaporization tube 8 and the nozzle 9 and the tube body 11, and after heating the vaporization tube 8 and the nozzle 9, the nozzle 9 that discharges the bactericidal gas is discharged. It is discharged in a direction that does not intersect with the discharge direction.

An example of spraying the disinfectant gas onto the preform 13, the bottle 14, and the paper container 15 using the disinfectant gasifier of the first embodiment is shown. The disinfectant gas discharged from the nozzle 9 is sprayed onto the preform 13 as shown in FIG. When the gas of the disinfectant comes into contact with or adheres to the inner and outer surfaces of the preform 13, bacteria and the like adhering to the surface of the preform 13 are sterilized.

Further, the gas of the disinfectant discharged from the nozzle 9 is sprayed onto the bottle 14 as shown in FIG. When the gas of the disinfectant comes into contact with or adheres to the inner and outer surfaces of the bottle 14, bacteria and the like adhering to the surface of the bottle 14 are sterilized.

Further, as shown in FIG. 7, the disinfectant gas discharged from the nozzle 9 is sprayed onto the gable top-shaped paper container 15 whose bottom is closed. When the gas of the disinfectant comes into contact with or adheres to the inner and outer surfaces of the paper container 15, bacteria and the like adhering to the surface of the paper container 15 are sterilized. When the opening is wide like the paper container 15, an umbrella-shaped member 16 surrounding the nozzle 9 is provided, and the gas of the bactericide that overflows from the inside of the paper container 15 collides with the umbrella-shaped member 16 to cause the paper container 15 to collide with the umbrella-shaped member 16. By flowing it to the outside, the outer surface of the paper container 15 can be efficiently sterilized. The umbrella-shaped member 16 can also be provided in the case of the preform 13 or the bottle 14.

When the tip of the nozzle 9 and the tube 11 covering the nozzle 9 is smaller than the opening of the object to be sterilized, the sterilizing agent gas and the heated gas are mixed inside the object to be sterilized, and the temperature of the sterilizing agent gas rises. The bactericidal effect is improved. Further, when the umbrella-shaped member 16 is provided, the gas of the bactericidal agent and the heated gas are mixed and flow to the outer surface of the object to be sterilized, so that the sterilizing effect of the outer surface of the object to be sterilized is also improved.

Examples of the object to be sterilized include the preform 13, the bottle 14, and the paper container 15, but any other shape such as a film, a sheet, a tray, or a cup may be used.

Although the present invention is configured as described above, the present invention is not limited to the above-described embodiment, and various modifications can be made within the gist of the present invention.

1 ... Disinfectant supply device 2 ... Spray device 6 ... Spray nozzle 8 ... Vaporizing tube 9 ... Nozzle 10 ... Heating device 11 ... Tube

Claims (5)

A disinfectant supply device that supplies disinfectants and
A vaporization tube that gasifies the disinfectant by coming into contact with the supplied disinfectant,
A gasification device for a bactericidal agent, comprising a nozzle provided at the tip of the vaporization tube for spraying a gasified bactericide, and a heating device for heating the vaporization tube and the nozzle with a heated gas. In the gasifier of the disinfectant according to claim 1,
A bactericidal agent comprising a tube having a shape substantially similar to that of the vaporizing tube and the nozzle, which covers the outer surface of the vaporizing tube and the nozzle while maintaining a constant interval with respect to the outer surface of the vaporizing tube and the nozzle. Vaporization equipment. In the gasifier of the disinfectant according to claim 1 or 2.
A gasifier for a disinfectant, wherein the heated gas is configured to be any one or a combination of two or more of heated air, heated steam, and heated superheated steam. In the disinfectant gasification device according to any one of claims 1 to 3.
A gasification device for a disinfectant, characterized in that the disinfectant and the heated gas are simultaneously sprayed. In the disinfectant gasification apparatus according to any one of claims 1 to 4.
A disinfectant gasification device, wherein the disinfectant supply device comprises a two-fluid spray.

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